Pin-operating mechanism for folding cylinders



May 21, 1929. LAMATSCH 1,713,837

PIN OPERATING MECHANISM FOR FOLDING CYLINDERS Filed Sept. 22, 1927 2 Sheets-Sheet l I lllll I-nml F. LAMATSCH May 21, 1929.

PIN OPERATING MECHANISM FOR FOLDING CYLINDERS Filed Sept. 22, 1927 Z Sheets-Sheet 2 IVNVEN'I'DR Patented May 21, 1929.

UNITED stares parent OFFICE.

FREDERICK LAMATSCH, OF GRANTWOGD, NEW JERSEY, ASSIGNOR TO B. HOE & 00., INC., 013 NEW YORK, N. Y., A CORPORATION OF NEW YORK.

PIN-OPERATING MEGI-IANISIVI FUR FOLDING CYLINDERS.

Application filed september 22, 1927. Serial No. 221,379.-

This invention relates to certain improvements 111 pm operating mechanism for folding and collecting cylinders.

In certain types of folding and collect.

ing cylinders the sheets are taken as they come from the press or other source of sheet supply by pins arranged across the cylinder, suitable mechanism being provided for protruding the pins beyond the cylinder to take the sheets and withdraw the pins into the cylinder walls to release the sheets. These pins include pin points which are secured in pin holders the latter being connected with the operating mechanism. It frequently becomes necessary to remove the pin points from the holders, or to remove the holders from the cylinder, and because of cramped space these parts are difficult to get at.

It is one object of the present invention to provide an improved operating mechanism by which the pin points may be protruded such a distance that they can be readily removed from outside the cylinder. It is a further object of the invention to arrange the operating mechanism so that the holders may be so manipulated as to permit their ready removal from the cylinder. It is a further object of the invention to provide a simple means for doing this, and one that is operable from outside the cylinder, so that a quick change of the pins may be effected.

With these and other objects not specifically referred to in view the invention consists in certain novel parts, arrangements and combinations which will be tally described in connection with the accompany, ing drawings, and the novel features pointed out in the claims hereunto appended.

In these drawings- Figure 1 is an end view partly broken away and partly in section of a collecting cylinder showing the invention, with the parts in normal operating position.

Figure 2 is a similar view showing the parts in the position assumed with the pin points protruded greater than a normal distance to permit their removal;

Figure 8 is a similar view showing the parts in the position assumed with the pin holders withdrawn into the cylinder a distance greater than normal to permit the removal of the holders; and

Figure 4.- is a top or plan view of the parts shown in Fig. 1.

Referring now to these drawings, 1 indicates a portion of a collecting cylinder mounted on a shaft 2 which is supported in framing of any suitable or desired character not shown. This cylinder is provided with sheet taking pins which are provided in suitable numbers, one of these pins being shown. As illustrated the pin mechanism includes a pin point 3 having a squared end 1 by which the pin may be held by any suitable tool for removal. The pin point 3 is threaded into a holder 5 which has a to and fro motion in a bore 6 formed in the Wall of the cylinder 1.

These pins are connected with operating mechanism by which they are withdrawn into the cylinder and protruded therefrom to release and take a sheet. I11 the construction provided for efiecting this the end of the pin holder is enlarged as at 7 to provide room for a slot 8, into which extends a pin 9, by which the holder is secured to an arm 10 fast on a rockshaft 11 suitably journaled in the heads of the cylinder 1.

This rockshaft, outside the end oi": the cylinder, is formed with an arm 12 which carries a cam roll 13, which works in the groove 14 of a fixed cam 15 suitably secured to the press frame, this cam groove being shaped to protrude and withdraw the pins at the proper times in the normal operation of the parts.

In accordance with the invention an improved construction is provided whereby the rockshaft may be turned in either direction a distance greater than the normal move ment, so as to project the pins far enough to permit their removal from outside the cylinder, or to retract the holders far enough to permit their ready removal, and this is accomplished by a manipulation of the cam 15. While the specific mechanism may be somewhat varied, the cam is provided with a movable part by which the position of the cam roll may be changed. As shown, the cam is provided with a movable section 16, which has a sliding movement between a pair of guides 17, 18. The movement of this section raises or lowers the cam roll 13 which in turn effects a rocking movement of the shaft 11. In the position shown in Fig. 2 the section has been moved inwardly towards. the center of the cam, and this movement acts to rock the shaft 11 so as to project the pin point beyond the .cylinder wall a suffieient distance to permit the squared end 1- of the pin to be engaged by a suitable tool. In Fig. 3 the movable section has been moved outwardly from the center of the cam, and the shaft 11 has been;

rocked in the opposite direct-ion to withdraw the pin holder 5 into the cylinder. this position the pin holder may be readily removed through a hole 19 (Fig. l) in the cylinder wall, the side of the bore 6 at its inner end being cut away to permit this, as shown at 20.

Any suitable means maybe employed for moving the cam section. In the particular construction shown the section on its outer side is formed with a boss 21, through which is threaded a screw rod 22. This rod passes through a hub 23on atrame 2 1, suitably secured, as by screws 25, to the guides 17,18

which are inte ral with the cam 15. Thrust collar 27 is provided for the rod 22 on one side of the hub23, and the screw rod is turned by a hand wheel. 29. The movable section of the cam may be held in place by locking bolts 30 which work in slots 31 in the guides. 3

lVith'thisconstruction, it will be Observed that the adjusting mechanism is outside the cylinder andis readily accessible, and the parts may be quickly manipulated to change the pins and the pin holders. While the invention has been shown and described in its preferred form it will be understood that certain changes and var1at1onsmay be made in the construction ofthe cam and the means for operating it without departing from the invention as described in the appended claims. ll hatl claim is: I

.1. In a pin adjusting mechanism, the combination of a cylinder, a pin holder, a pin point carried by the holder, an operating shaft for protruding and withdrawingthe point with respect to the'cylinder wall for normal operation, a cam having a movable sectiontl or operating the shaft, and means located outside the cylinder for manipulat- When in ing the cam to cause a protrusion and withdrawalof the point andholder a distance greater than in the normal operation for ready removal of the point and holder.

2. In a pin adjusting mechanism, .the combination of a cylinder, a pin holder, a pin point carried by the holder, an operating shaft for protruding and withdrawing the 7 point with respect to the cylinder wall. for normal operation, and a. cam tor operating the shaft having a. movable section, the movement of which causes a turmngmovement of the shaft a dlstance' greater than normal. I

3. in a 3m ad ustin 'mechanism. the combination of a cylinder, {1 pin holder,a pin point carried by the holder, an operating shaft to which the holders-are secured, a cam, acam roll engaged by the cam and connected with the shaft, and amovable cam section for moving the roll towards and away from the center of the cam.

4. In a pin ad ust ng mechanism,

the combination of a cylinder, a pin holder, a pin.

point carried by'the holder, a roperating shaft to which the holders are secured, :1

cam, a cam roll engagedby the cam and connected with the shaft, a movable cam section for moving the roll towards and away from the center of the cam, and means for locking the section in adjusted position. i

5. In a-pin adjusting mechanism, the com bination of a'cylinder, a pin holder, 'apin point carried by the holder, an operating 7 my hand.

FREDERICK LAMATSGH.

I havehereunto set 

